Intraocular lens implant system

Abstract

The invention discloses an artificial lens implanter system, which can be installed with a folding introduction head or a flat introduction head when in use, and can also be used in conjunction with an artificial lens loading bracket.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an artificial lens implant system. Background Art

[0002] Intraocular Lens (IOL) refers to a special lens made of artificial synthetic materials, which is a precision optical component implanted into the eye to replace the removed turbid lens, which is equivalent to replacing a lens. At present, the main method of implanting an intraocular lens is to implant the intraocular lens into the eye by a pusher, but the prior art pushers have cumbersome procedures and inconvenient operation when installing the introduction head and the intraocular lens, and there are large uncertainties. If the medical staff performing the operation have a low level of proficiency, the operation time will be greatly extended, and even cause artificial damage to the intraocular lens. In addition, due to the different operators, the loading state (loading angle, etc.) of the intraocular lens may be different, resulting in misoperation, and then the state of the intraocular lens after being pushed into the eye is poor (in extreme cases, it may cause the front and back to be reversed), so it needs to be corrected again, which increases the risk of surgery.

[0003] The process of using the intraocular lens implanter is to first install the intraocular lens in the implanter's introduction head, then install it on the implanter, and then push the intraocular lens into the eye. The types of implanter introduction heads are mainly divided into folding introduction heads and flat introduction heads.

[0004] The artificial lens implanters currently disclosed in patents and sold on the market are all implanters that are only suitable for one type of introducer head, that is, the implanter that is suitable for a folding introducer head cannot be installed with a flat-type introducer head, and the implanter that is suitable for a flat-type introducer head cannot be installed with a folding introducer head. Summary of the invention

[0005] The invention provides an artificial lens implanter system and an introduction head.

[0006] The intraocular lens implant system of the present invention comprises an introduction head, an injection cylinder, an injection rod, an injection cap and a spring. The intraocular lens implant system of the present invention has dual functions, and introduction heads with different characteristics can use the same implant system to meet the implantation requirements of different lenses.

[0007] The push cylinder that constitutes a part of the implant system described in the present invention has structural features that allow it to install two or more different structural types of introduction heads. More preferably, it has a characteristic structure that can install both a folding type introduction head and a flat-type introduction head.

[0008] The introduction head constituting the implant system of the present invention is used to install the intraocular lens. When in use, the intraocular lens is first installed in the introduction head, and then the introduction head containing the intraocular lens is installed in the injection barrel, and then the intraocular lens is pushed into the eye by the injection rod. The use method is well known in the art.

[0009] The introduction head of the implant system of the present invention can be either a folding introduction head or a flat introduction head. The folding introduction head and the flat introduction head are two introduction heads with significantly different structural features.

[0010] The flat-type introduction head of the present invention has a channel formed inside, the channel has an introduction port and an export port, the inner wall of the channel has a guide groove formed at the introduction port, the width of the guide groove is greater than the width of the introduction port, and the width of the guide groove gradually decreases from the introduction port to the export port.

[0011] In the flat-type introduction head of the present invention, by setting the width of the guide groove to gradually decrease from the introduction port to the outlet port, the artificial lens is curled in the channel, so that it can move in the channel in the required loading state, and then the artificial lens can be smoothly moved and pushed out, avoiding the occurrence of scratches or cracks caused by excessive squeezing force on the artificial lens due to excessive thrust. At the same time, by setting the guide groove in the channel of the flat-type introduction head, it can be avoided that the artificial lens is placed on the reverse side after being implanted in the eye, reducing the difficulty of the operation.

[0012] In some embodiments, the guide groove is in a truncated cone shape.

[0013] In some embodiments, the channel includes a first section and a second section connected to the first section, the first section is connected to the inlet, the second section is connected to the outlet, and the width of the first section gradually decreases from the inlet to the outlet.

[0014] In certain embodiments, the length of the first segment is greater than the length of the second segment.

[0015] The intraocular lens implanter system of the present invention comprises: the introduction head and the injection rod as described in any one of the above embodiments; the injection rod can extend into the channel.

[0016] In some embodiments, the intraocular lens implanter system includes an injection barrel connected to the introduction head, the injection rod is movably installed in the injection barrel, and one end of the injection rod can extend out of the injection barrel and into the channel.

[0017] In some embodiments, the injection cylinder is formed with an opening for the injection rod to extend out, and the injection cylinder is also provided with a receiving groove located between the opening and the introduction port, the receiving groove is used to receive a bracket containing an artificial lens, and the injection rod can push the artificial lens in the bracket into the channel.

[0018] In some embodiments, the manual injection device also includes an elastic member connecting the injection barrel and the injection rod, and the elastic member is used to reset the push head of the injection rod into the injection barrel when the injection rod is extended into the channel and the external force is unloaded; the elastic member is also used to control the injection speed when the injection rod is extended into the channel.

[0019] In certain embodiments, it is characterized in that the elastic member is sleeved on the injection rod and is located in the injection cylinder.

[0020] In some embodiments, a push cap is installed at the end of the push rod facing the introduction head, and the end of the push cap facing the introduction head is forked.

[0021] The implanter system of the present invention, when using a flat-type introducer head, can not only quickly install the lens inside the flat-type introducer head for intraocular implantation, but can also be used in conjunction with an artificial lens packaging bracket to achieve a faster artificial lens installation and push injection effect. In some embodiments, the packaging bracket containing the artificial lens is directly installed on the rear of the implanter system introducer head, and the lens can be directly push-injected and implanted into the eye, without the need to remove the artificial lens from the lens packaging bracket and install it inside the introducer head.

[0022] The foldable introduction head described in the present invention has at least one structural card point that can enhance the firmness of the installation, and more preferably has two or more structural card points, so as to overcome the problem that after the foldable introduction head is installed in the current implanter on the market, the introduction head is prone to warping in the vertical direction, thereby causing the problem of unstable injection during the lens implantation process.

[0023] Furthermore, the intraocular lens implanter system structure of the present invention may also include a push-injection barrel cover to further enhance the stability of the implanter system during the lens implantation process. In certain embodiments, the push-injection barrel cover further enhances the installation stability of the flat-type introduction head in the implanter system. More preferably, when the package support containing the intraocular lens is directly installed in front of the flat-type introduction head of the implanter system, the push-injection barrel cover can prevent the package support containing the lens from falling off during the operation.

[0024] The artificial lens implanter system described in the present invention is used to implant an artificial lens into the eye. It can implant both an artificial lens for treating cataracts and a refractive artificial lens. The characteristics of phakic artificial lenses, artificial lenses for treating cataracts and refractive artificial lenses are common knowledge in the art.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is an exploded schematic diagram of an intraocular lens implant system according to the first embodiment of the present invention;

[0028] Figure 2 is a three-dimensional schematic diagram of an intraocular lens implant system according to a first embodiment of the present invention;

[0029] Figure 3 is another stereoscopic schematic diagram of the intraocular lens implant system according to the first embodiment of the present invention;

[0030] Figure 4 is a structural schematic diagram of an intraocular lens implant system according to a second embodiment of the present invention;

[0031] Figure 5 yes Figure 4 A partial cross-sectional view of the intraocular lens implant system in direction A;

[0032] Figure 6 yes Figure 4 A full cross-sectional view of the intraocular lens implant system in direction A;

[0033] Figure 7 is a disassembled schematic diagram of an intraocular lens implant system according to a second embodiment of the present invention;

[0034] Figure 8 is a full cross-sectional view of another embodiment of the intraocular lens implant system of the second embodiment of the present invention;

[0035] Fig. 9 is an assembly schematic diagram of an embodiment of an intraocular lens implant system according to the second embodiment of the present invention;

[0036] Fig.10 is an assembly schematic diagram of another embodiment of the intraocular lens implant system of the second embodiment of the present invention;

[0037] Fig.11is an exploded schematic diagram of an intraocular lens implant system according to a third embodiment of the present invention;

[0038] Fig.12 is a three-dimensional schematic diagram of an intraocular lens implant system according to a third embodiment of the present invention;

[0039] Fig.13 It is another stereoscopic schematic diagram of the intraocular lens implant system according to the third embodiment of the present invention.

[0040] Description of the main component symbols: intraocular lens implanter system 100; intraocular lens 200; foldable introduction head 101; structural reinforcement card point 1011; flat-type introduction head 10; channel 11; introduction port 110; outlet port 111; guide groove 113; first abutment surface 1130; packaging bracket 300; first section 115; second section 117; injection rod 20; injection cylinder 30; first rod body 21; second rod body 23; reinforcing rib 25; push end 27; first stop surface 271; second stop surface 31; opening 33; accommodating groove 35; card slot 36; inlet 301; outlet 302; buckle 303; elastic member 40; injection cap 50. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0046] Embodiment 1:

[0047] See also Figure 1 - Figure 3 The intraocular lens implanter system 100 of this embodiment can be installed with an introduction head with different structural features, and can also be used in conjunction with a lens packaging bracket 300. Specifically, the intraocular lens implanter system 100 includes an introduction head, an injection barrel 30, an injection rod 20, an injection cap 50 and a spring 40. The introduction head is detachably mounted on the injection barrel 30, the injection rod 20 extends into the injection barrel 30, the injection cap 50 is connected to one end of the injection rod 20, and the spring 40 is sleeved on the injection rod 20.

[0048] The push cylinder 30 is provided with a plurality of slots 36 arranged at intervals, and the plurality of slots 36 are used to install two or more different structural types of introduction heads. Among them, the introduction heads are a folding introduction head 101 and a flat introduction head 10, and the folding introduction head 101 has two wings that can be folded mutually.

[0049] In the embodiment of the present application, there are three slots 36, wherein the upper slot 36 is used to install the foldable introduction head 101, and the slots 36 on the left and right sides are used to install the flat-type introduction head 10. It should be noted that the slot 36 can only clamp one of the foldable introduction head 101 and the flat-type introduction head 10 at a time. In other words, the introduction heads of different structural types are selectively clamped in the slot 36.

[0050] The foldable introduction head 101 or the flat introduction head 10 can be inserted into the head of the push tube 30. Further, the foldable introduction head 101 includes at least one structural reinforcement point 1011, and more preferably has two or more structural reinforcement points 1011. The structural reinforcement points 1011 overcome the problem that the introduction head is prone to vertical tilting after the foldable introduction head 101 is installed in the current implanter on the market, thereby causing the problem of unstable push during the implantation of the lens.

[0051] In summary, the injection cylinder 30 of the intraocular lens implanter system 100 described in the present invention has structural features that allow it to install two (including) or more different structural types of introduction heads. More preferably, it has a characteristic structure that can install a foldable introduction head 101 and a characteristic structure that can install a flat-type introduction head 10.

[0052] The introduction head constituting part of the implantation system 100 of the present invention is used to install the intraocular lens. When in use, the intraocular lens is first installed in the introduction head, and then the introduction head containing the intraocular lens is installed in the injection barrel 30, and then the intraocular lens is pushed into the eye by the injection rod 20.

[0053] Embodiment 2:

[0054] See also Figure 4 and Figure 5 The present invention provides a flat-type introduction head 10 of an intraocular lens implanter system 100, wherein the flat-type introduction head 10 is formed with a channel 11, wherein the channel 11 has an introduction port 110 and an outlet port 111, wherein a guide groove 113 is formed on the inner wall of the channel 11 at the introduction port 110, wherein the width of the guide groove 113 is greater than the width of the introduction port 110, and the width of the guide groove 113 gradually decreases from the introduction port 110 toward the guide outlet 111.

[0055] In the flat-type introduction head 10 of the intraocular lens implantation system 100 of the present invention, by setting the width of the guide groove 113 to gradually decrease from the introduction port 110 to the outlet port 111, the intraocular lens 200 is curled in the channel 11, so that it can move in the channel 11 in the required loading state, and then the intraocular lens 200 can be smoothly moved and pushed out, avoiding the occurrence of excessive squeezing force on the intraocular lens 200 and causing scratches or cracks. At the same time, by setting the guide groove 113 in the channel 11 of the flat-type introduction head 10, it can be avoided that the intraocular lens 200 is placed on the reverse side after being implanted in the eye, reducing the difficulty of the operation.

[0056] Specifically, the channel 11 may be a through hole formed in the axial direction of the flat-type introduction head 10. Figure 5 The left and right directions shown in the figure may include an inlet 110 and an outlet 111. The radial dimension of the outlet 111 (i.e. Figure 5 The inner wall of the channel 11 at one end close to the introduction port 110 may include a guide groove 113, the radial dimension of the guide groove 113 is larger than the radial dimension of the introduction port 110, and the radial dimension of the guide groove 113 close to the introduction port 110 is larger than the radial profile dimension of the artificial lens 200, so that the artificial lens 200 does not interfere with the guide groove 113 when passing through.

[0057] At the same time, the radial dimension of the guide groove 113 gradually decreases from the introduction port 110 to the guide outlet 111 to form a guide surface in the guide groove 113. When the radial dimension of the guide groove 113 is reduced to at least 1 / 2 of the maximum radial dimension of the guide groove 113, the radial dimension of the guide groove 113 is smaller than the radial profile dimension of the artificial lens 200, so that the artificial lens 200 interferes with the inner wall of the guide groove 113 when it moves forward under the thrust to form a curled shape. When the radial dimension of the guide groove 113 is reduced to the minimum value, the radial dimension of the guide groove 113 is larger than the maximum thickness of the artificial lens 200, but at the same time, the interference between the guide groove 113 and the artificial lens 200 reaches the maximum, and the direction of the artificial lens 200 in the channel 11 is fixed, so that the artificial lens 200 can be separated from the outlet 111 of the flat-type introduction head 10 in a fixed loading state, thereby completing the intraocular lens injection.

[0058] See also Figure 4 and Figure 5 In some embodiments, the guide groove 113 is in a truncated cone shape.

[0059] In this way, the intraocular lens 200 can be pushed out smoothly and steadily in the guide groove 113 .

[0060] Specifically, the bottom surface of the guide groove 113 may include a first abutment surface 1130, which is used to limit the position of the packaging bracket 300 near the flat-type introduction head 10 when the artificial lens 200 is pushed. The packaging bracket 300 can be used to install and place the artificial lens 200. The artificial lens 200 and the packaging bracket 300 can be a combination. This embodiment does not limit the specific contour shape of the packaging bracket 300.

[0061] The radial dimension of the guide groove 113 decreases continuously from left to right along the generatrix direction, and at least at the axial 1 / 2 of the generatrix, the radial dimension of the guide groove 113 is smaller than the radial profile dimension of the intraocular lens 200, so that the intraocular lens 200 forms a curled shape when it moves forward under the thrust.

[0062] See also Figure 5 In some embodiments, the channel 11 includes a first section 115 and a second section 117 connected to the first section 115, the first section 115 is connected to the inlet 110, the second section 117 is connected to the outlet 111, and the width of the first section 115 gradually decreases from the inlet 110 to the outlet 111.

[0063] In this way, the intraocular lens 200 can be pushed in a rolled-up state by the first section 115 , and the intraocular lens 200 can be separated from the outlet 111 of the flat-type introduction head 10 by the second section 117 .

[0064] Specifically, the first section 115 can be interconnected with the second section 117, and the radial dimensions of the first section 115 and the second section 117 are both smaller than the radial dimension of the guide groove 113. The first section 115 is connected to the introduction port 110, and the second section 117 is connected to the outlet port 111. The radial dimension of the first section 115 gradually decreases from the introduction port 110 to the guide outlet port 111, so that the artificial lens 200 can be curled through the first section 115, so that when it reaches the second section 117, it can smoothly detach from the outlet port 111 of the flat-type introduction head 10, thereby completing the intraocular injection.

[0065] See also Figure 5 In some embodiments, the length of the first segment 115 is greater than the length of the second segment 117 .

[0066] In this way, the intraocular lens 200 will not be subjected to excessive squeezing force, thus preventing scratches or cracks from occurring.

[0067] Specifically, the radial dimension of the first section 115 gradually decreases, and when the radial dimension of the first section 115 is smaller than the radial outline dimension of the intraocular lens 200, the intraocular lens 200 interferes with the inner wall surface of the guide groove 113 where the first section 115 is located, so that the intraocular lens 200 forms a curled shape when passing through the first section 115. The second section 117 is close to the guide outlet 111, and when the intraocular lens 200 is pushed to the second section 117, the interference amount between the intraocular lens 200 and the inner wall surface of the flat-type introduction head 10 reaches a maximum value, so the size of the second section 117 can be less than or equal to 1 / 2 of the length of the first section 115 to prevent the intraocular lens 200 from being subjected to excessive squeezing force.

[0068] The intraocular lens implanter system 100 of the present invention comprises a flat-bed type introduction head 10 and a push rod 20 according to any one of the above embodiments. The push rod 20 can extend into the channel 11 .

[0069] In this way, the intraocular lens 200 in the channel 11 of the flat-type introduction head 10 can be pushed out by the injection rod 20, thereby completing the intraocular lens injection.

[0070] Specifically, the push rod 20 can be arranged on a side away from the outlet 111, and the push rod 20 can extend from the inlet 110 into the channel 11. The diameter of the push rod 20 should be smaller than the inner diameter of the inlet 110. The push rod 20 can push the intraocular lens 200 in the packaging bracket 300 so that the intraocular lens 200 moves along the axial direction of the push rod 20 (i.e. Figure 5 left and right directions) as shown.

[0071] See also Figure 6 - Figure 8 In some embodiments, the intraocular lens implanter system 100 may include an injection barrel 30 connected to a flat-type introduction head 10, and an injection rod 20 is movably installed in the injection barrel 30, and one end of the injection rod 20 can extend out of the injection barrel 30 and into the channel 11.

[0072] In this way, the push cylinder 30 can be arranged on one side of the flat-type introduction head 10, and the push cylinder 30 can be integrally formed with the flat-type introduction head 10. The push cylinder 30 can also be detachably connected to the flat-type introduction head 10, and the connection method can be threaded connection or snap connection, etc. The present invention does not limit the connection method between the push cylinder 30 and the flat-type introduction head 10. When the push cylinder 30 and the flat-type introduction head 10 are detachably connected, the flat-type introduction head 10 can be replaced. The present invention shows a flat-type introduction head 10, which can be replaced with a flat-type introduction head 10 when in use. Figure 3 The folding clamp type introduction head 101 shown, therefore, the present invention has good versatility.

[0073] The push cylinder 30 may include a first through hole, which axially penetrates the push cylinder 30, and the push rod 20 is disposed in the first through hole and extends out of the first through hole to extend toward the introduction port 110 of the flat-type introduction head 10. The push rod 20 may include a first rod body 21, a second rod body 23, a reinforcing rib 25, and a push end 27. The first rod body 21 may be disposed at one end away from the flat-type introduction head 10, and the second rod body 23 may be disposed at one end close to the flat-type introduction head 10. The reinforcing rib 25 can be integrally formed with the first rod body 21 and protrude from the first rod body 21 along the axial direction of the injection rod 20. The inner wall surface of the injection cylinder 30 may include a slide groove (not shown). The reinforcing rib 25 and the slide groove may be clearance-fitted so that the reinforcing rib 25 can slide in the injection cylinder 30 along the axial direction of the injection rod 20 and limit the rotation of the injection rod 20 in the injection cylinder 30 to avoid the artificial lens 200 being curled around the outer periphery of the injection rod 20 when the injection rod 20 pushes the artificial lens 200, thereby causing the artificial lens 200 to rupture.

[0074] The push end 27 can be set at an end close to the first rod body 21. External force is applied to the push end 27 to push the injection rod 20 to move axially. The push end 27 may include a first thrust surface 271 close to one end of the injection cylinder 30. The side of the injection cylinder 30 close to the push end 27 may include a second thrust surface 31. The first thrust surface 271 and the second thrust surface 31 cooperate to limit the maximum advancement distance of the injection rod 20 in the channel 11 to prevent the injection rod 20 from extending out of the guide outlet 111 and causing medical accidents.

[0075] See also Figure 6 and Figure 7 In some embodiments, the push cylinder 30 is formed with an opening 33 for the push rod 20 to extend out, and the push cylinder 30 is also provided with a receiving groove 35 located between the opening 33 and the introduction port 110, and the receiving groove 35 is used to receive the packaging bracket 300 containing the artificial lens 200, and the push rod 20 can push the artificial lens 200 in the packaging bracket 300 into the channel 11.

[0076] In this way, the push rod 20 can push the intraocular lens 200 installed in the packaging support 300 located in the receiving groove 35 into the channel 11 through the opening 33 .

[0077] Specifically, the opening 33 can be set at one end of the injection cylinder 30 axially close to the flat-type introduction head 10, the notch of the accommodating groove 35 is used to install the packaging bracket 300, and the bottom of the accommodating groove 35 is used to connect the injection cylinder 30 and the flat-type introduction head 10. The notch size of the accommodating groove 35 is sufficient to accommodate the packaging bracket 300. The present invention does not limit the structural shape parameters such as the notch size of the accommodating groove 35.

[0078] The packaging support 300 may include an inlet 301 and an outlet 302, and the inner diameter of the inlet 301 may be equal to the inner diameter of the outlet 302. The inlet 301 may be arranged at one end close to the opening 33, and the outlet 302 may be arranged at one end close to the introduction port 110. The push rod 20 extends from the opening 33 of the push cylinder 30, further moves along the axial direction of the push cylinder 30, extends from the inlet 301 into the interior of the packaging support 300, pushes the intraocular lens 200 located inside the packaging support 300, and pushes the intraocular lens 200 out of the outlet 302 along the axial direction of the packaging support 300, thereby the intraocular lens 200 is pushed into the channel 11 via the introduction port 110.

[0079] See also Fig. 9 In one embodiment, in the initial state, the intraocular lens 200 is loaded into the packaging support 300 to form a pre-installed flat-type introduction head 10 assembly. The packaging support 300 is taken out of the storage box, and then the packaging support 300 is quickly and radially loaded into the receiving groove 35 of the injection device, so that the end surface of the outlet 302 of the packaging support 300 contacts the first abutting surface 1130. The packaging support 300 may include a buckle 303 located at the inlet 301, and the inner wall surface of the injection barrel 30 close to the inner wall of the packaging support 300 may include a buckle groove (not shown), and the buckle 303 buckles the buckle groove to fix it, and finally pushes the injection rod 20 to slowly push out the intraocular lens 200.

[0080] See also Fig.10 In another embodiment, the intraocular lens 200 is taken out from the packaging support 300 in the storage box with tweezers, and quickly radially loaded into the flat-type introduction head 10 to form a non-pre-installed flat-type introduction head 10 assembly, and then the injection rod 20 is pushed to slowly push the intraocular lens out.

[0081] See also Figure 6 and Figure 7 In some embodiments, the manual injector further includes an elastic member 40 connecting the injector barrel 30 and the injector rod 20, and the elastic member 40 is used to reset the push head of the injector rod 20 into the injector barrel 30 when the injector rod 20 extends into the channel 11 and the external force is unloaded.

[0082] In this way, the elastic member 40 can be compressed, so that the push head of the push rod 20 can be reset to the push cylinder 30 after the external force is unloaded.

[0083] In addition, when the push rod 20 moves forward, the elastic member 40 can effectively control its advancement speed due to its own elastic performance, thereby preventing the artificial lens 200 from being damaged due to excessive push speed.

[0084] Specifically, when being compressed, the elastic member 40 can resist against the inner wall surface of the injection cylinder 30 near the opening 33. The minimum radial dimension of the elastic member 40 should be larger than the inner diameter of the opening 33, so that the elastic member 40 can be compressed with the help of the inner wall surface of the injection cylinder 30 and avoid the elastic member 40 extending out of the injection cylinder 30 and directly contacting the artificial lens 200, causing damage to the artificial lens 200.

[0085] See also Figure 6 and Figure 7 In some embodiments, the elastic member 40 is sleeved on the injection rod 20 and is located in the injection cylinder 30.

[0086] In this way, the injection rod 20 can be reset to the injection cylinder 30 by means of the elastic deformation of the elastic member 40 .

[0087] The elastic member 40 is sleeved on the second rod body 23 of the push rod 20 . The diameter of the second rod body 23 sleeved with the elastic member 40 is smaller than the inner diameter of the push cylinder 30 , so that the push rod 20 can move along the axial direction of the push cylinder 30 .

[0088] See also Figure 6 and Figure 7 In some embodiments, a push cap 50 is installed at the end of the push rod 20 facing the flat chamber type introduction head 10, and the end of the push cap 50 facing the flat chamber type introduction head 10 is forked.

[0089] In this way, the push rod 20 pushes the intraocular lens 200 through the push cap 50 .

[0090] Specifically, the push cap 50 can be installed at the end of the push rod 20 near the flat-type introduction head 10 by any detachable connection method, and the radial dimension of the push cap 50 can be smaller than the inner diameter of the packaging bracket 300 and the inner diameter of the introduction port 110. The bifurcated push cap 50 is elastic and easy to install, and can interfere with the introduction port 110 when passing through the introduction port 110, so that the bifurcated parts are as close as possible, so that the intraocular lens 200 can be smoothly pushed forward when contacting the intraocular lens 200.

[0091] The material of the injection cap 50 is silicone rubber or soft plastic.

[0092] The push rod is installed into the push cylinder 30, and the push rod is pushed to move axially, so that the push cap 50 is in direct contact with the intraocular lens 200. After the intraocular lens 200 in the pre-installed or non-pre-installed flat-type introduction head 10 assembly is pushed by the push rod, the intraocular lens 200 is pushed to move axially to the guide groove 113 of the flat-type introduction head 10. Since the radial dimension of the guide groove 113 from the introduction port 110 to the outlet port 111 gradually decreases, the intraocular lens forms a curled shape when it is pushed forward, and then the intraocular lens 200 is in the required loading state when it finally leaves the outlet port 111 of the flat-type introduction head 10, so as to smoothly realize the intraocular lens injection of the intraocular lens on the pre-installed or non-pre-installed pusher. After the injection is completed, the push rod is unloaded, and the push rod can automatically return to the initial state with the help of the rebound force of the elastic member 40.

[0093] Embodiment 3:

[0094] See also Fig.10 - Fig.13 The intraocular lens implanter system 100 of this embodiment further includes an injection tube cover 60, which is used to cover the packaging bracket 300 to enhance the stability of the intraocular lens implanter system 100 during the lens implantation process and prevent the packaging bracket 300 containing the lens from falling off during the operation.

[0095] Furthermore, the flat-type introduction head 10 can be used in conjunction with the intraocular lens packaging bracket 300 to achieve installation-free use of the intraocular lens.

[0096] It should be pointed out that the features in the above three embodiments can be combined with each other in a suitable manner. For example, the structural features of the flat-type introduction head 10 in Example 2 are applicable to the flat-type introduction head 10 in Example 1, and the features of the flat-type introduction head 10 will not be repeated in Example 1.

[0097] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0098] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An intraocular lens implant system, characterized in that: The intraocular lens implanter system can be installed with an introduction head with different structural features, and can also be used in conjunction with a lens packaging bracket. The intraocular lens implanter system comprises an introduction head, an injection barrel, an injection rod, an injection cap and a spring. The introduction head is detachably mounted on the injection barrel, the injection rod extends into the injection barrel, the injection cap is connected to one end of the injection rod, and the spring is sleeved on the injection rod. The push-in cylinder is provided with a plurality of slots arranged at intervals, and the plurality of slots are used to install two or more different structural types of introduction heads; the introduction heads are foldable introduction heads and flat-type introduction heads, and the foldable introduction heads have two wings that can be folded mutually; There are three card slots, the upper card slot is used to install the foldable introduction head, and the card slots on the left and right sides are used to install the flat-type introduction head; the flat-type introduction head is formed with a channel, the channel has an introduction port and an export port, and the inner wall of the channel is located at the introduction port to form a guide groove; the width of the guide groove is greater than the width of the introduction port, and the width of the guide groove gradually decreases from the introduction port to the export port; The channel includes a first section and a second section connected to the first section, the first section is connected to the inlet, the second section is connected to the outlet, the width of the first section gradually decreases from the inlet to the outlet; the length of the first section is greater than the length of the second section; The push rod includes a first rod body, a second rod body, a reinforcing rib and a push end. The reinforcing rib is integrally formed with the first rod body and protrudes from the first rod body along the axial direction of the push rod. The inner wall surface of the push cylinder includes a slide groove. The reinforcing rib is gap-matched with the slide groove so that the reinforcing rib slides in the push cylinder along the axial direction of the push rod and limits the rotation of the push rod in the push cylinder.

2. The intraocular lens implant system according to claim 1, characterized in that: The foldable introduction head includes at least one structural reinforcement point.

3. The intraocular lens implant system according to claim 2, characterized in that: The flat-type introduction head can be used in conjunction with an intraocular lens packaging bracket to achieve installation-free use of the intraocular lens.

4. The intraocular lens implant system according to claim 3, characterized in that: It also includes a push-in cylinder cover, which is used to cover the packaging bracket to enhance the stability of the intraocular lens implanter system during the lens implantation process.

5. The intraocular lens implant system according to claim 4, characterized in that: The intraocular lens implanter system is used for implanting intraocular lenses and refractive intraocular lenses for treating cataracts.

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